Benefit Plans (Net Periodic Pension Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 46	$ 44
Interest cost	243	275
Expected return on plan assets	(272)	(285)
Recognized net actuarial gain (loss)	109	49
Net periodic cost	$ 126	$ 83
Obligation	4.05%	3.75%
Expense	3.75%	4.50%
Expected long-term rate of return on assets	5.50%	5.50%
Estimated 2016 Net Periodic Benefit Cost [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 44
Interest cost	254
Expected return on plan assets	(253)
Recognized net actuarial gain (loss)	128
Net periodic cost	$ 173